Get Started

Welcome to Bun Installation Quickstart TypeScript TypeScript 6 and 7

Watch Mode Debugging REPL bunfig.toml File Types Module Resolution JSX Auto-install Plugins File System Router

Server Routing Cookies TLS Error Handling Metrics

Cookies File I/O Streams Binary Data Archive SQL SQLite S3 Redis Workers Environment Variables Shell Spawn WebView Cron Node-API FFI C Compiler Transpiler CSRF Protection Secrets Console TOML YAML Markdown JSON5 JSONL HTMLRewriter Image Hashing Glob Semver Color Utils Globals Bun APIs Web APIs Node.js Compatibility

Standards & CompatibilityHTTP server

Metrics

Monitor server activity with built-in metrics

Error Handling

Learn how to handle errors in Bun's development server

Cookies

Use Bun's native APIs for working with HTTP cookies

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server.pendingRequests and server.pendingWebSockets server.subscriberCount(topic)